Merge pull request #634 from BeiChen-CN/main

feat：支持导出聊天记录中的文件

.gitignore

@@ -72,3 +72,4 @@ pnpm-lock.yaml
 /pnpm-workspace.yaml
 wechat-research-site
 .codex
+weflow-web-offical

electron/main.ts

@@ -136,6 +136,7 @@ const shouldOfferUpdateForTrack = (latestVersion: string, currentVersion: string
 }
 
 let lastAppliedUpdaterChannel: string | null = null
+let lastAppliedUpdaterFeedUrl: string | null = null
 const resetUpdaterProviderCache = () => {
   const updater = autoUpdater as any
   // electron-updater 会缓存 provider；切换 channel 后需清理缓存，避免仍请求旧通道
@@ -146,23 +147,41 @@ const resetUpdaterProviderCache = () => {
   }
 }
 
+const getUpdaterFeedUrlByTrack = (track: 'stable' | 'preview' | 'dev'): string => {
+  const repoBase = 'https://github.com/hicccc77/WeFlow/releases'
+  if (track === 'stable') return `${repoBase}/latest/download`
+  if (track === 'preview') return `${repoBase}/download/nightly-preview`
+  return `${repoBase}/download/nightly-dev`
+}
+
 const applyAutoUpdateChannel = (reason: 'startup' | 'settings' = 'startup') => {
   const track = getEffectiveUpdateTrack()
   const currentTrack = inferUpdateTrackFromVersion(appVersion)
   const baseUpdateChannel = track === 'stable' ? 'latest' : track
+  const nextFeedUrl = getUpdaterFeedUrlByTrack(track)
   const nextUpdaterChannel =
     process.platform === 'win32' && process.arch === 'arm64'
       ? `${baseUpdateChannel}-arm64`
       : baseUpdateChannel
-  if (lastAppliedUpdaterChannel && lastAppliedUpdaterChannel !== nextUpdaterChannel) {
+  if (
+    (lastAppliedUpdaterChannel && lastAppliedUpdaterChannel !== nextUpdaterChannel) ||
+    (lastAppliedUpdaterFeedUrl && lastAppliedUpdaterFeedUrl !== nextFeedUrl)
+  ) {
     resetUpdaterProviderCache()
   }
   autoUpdater.allowPrerelease = track !== 'stable'
   // 只要用户当前选择的目标通道与当前安装版本所属通道不同，就允许跨通道更新（含降级）
   autoUpdater.allowDowngrade = track !== currentTrack
+  // 统一走 generic feed，确保 preview/dev 命中各自固定发布页，不受 GitHub provider 的 prerelease 选择影响。
+  autoUpdater.setFeedURL({
+    provider: 'generic',
+    url: nextFeedUrl,
+    channel: nextUpdaterChannel
+  })
   autoUpdater.channel = nextUpdaterChannel
   lastAppliedUpdaterChannel = nextUpdaterChannel
-  console.log(`[Update](${reason}) 当前版本 ${appVersion}，当前轨道: ${currentTrack}，渠道偏好: ${track}，更新通道: ${autoUpdater.channel}，allowDowngrade=${autoUpdater.allowDowngrade}`)
+  lastAppliedUpdaterFeedUrl = nextFeedUrl
+  console.log(`[Update](${reason}) 当前版本 ${appVersion}，当前轨道: ${currentTrack}，渠道偏好: ${track}，更新通道: ${autoUpdater.channel}，feed=${nextFeedUrl}，allowDowngrade=${autoUpdater.allowDowngrade}`)
 }
 
 applyAutoUpdateChannel('startup')

electron/services/chatService.ts

@@ -75,6 +75,7 @@ export interface Message {
   fileName?: string         // 文件名
   fileSize?: number         // 文件大小
   fileExt?: string          // 文件扩展名
+  fileMd5?: string          // 文件 MD5
   xmlType?: string          // XML 中的 type 字段
   appMsgKind?: string       // 归一化 appmsg 类型
   appMsgDesc?: string
@@ -3796,6 +3797,7 @@ class ChatService {
       let fileName: string | undefined
       let fileSize: number | undefined
       let fileExt: string | undefined
+      let fileMd5: string | undefined
       let xmlType: string | undefined
       let appMsgKind: string | undefined
       let appMsgDesc: string | undefined
@@ -3900,6 +3902,7 @@ class ChatService {
         fileName = type49Info.fileName
         fileSize = type49Info.fileSize
         fileExt = type49Info.fileExt
+        fileMd5 = type49Info.fileMd5
         chatRecordTitle = type49Info.chatRecordTitle
         chatRecordList = type49Info.chatRecordList
         transferPayerUsername = type49Info.transferPayerUsername
@@ -3923,6 +3926,7 @@ class ChatService {
         fileName = fileName || type49Info.fileName
         fileSize = fileSize ?? type49Info.fileSize
         fileExt = fileExt || type49Info.fileExt
+        fileMd5 = fileMd5 || type49Info.fileMd5
         appMsgKind = appMsgKind || type49Info.appMsgKind
         appMsgDesc = appMsgDesc || type49Info.appMsgDesc
         appMsgAppName = appMsgAppName || type49Info.appMsgAppName
@@ -3996,6 +4000,7 @@ class ChatService {
         fileName,
         fileSize,
         fileExt,
+        fileMd5,
         xmlType,
         appMsgKind,
         appMsgDesc,
@@ -4599,6 +4604,7 @@ class ChatService {
     fileName?: string
     fileSize?: number
     fileExt?: string
+    fileMd5?: string
     transferPayerUsername?: string
     transferReceiverUsername?: string
     chatRecordTitle?: string
@@ -4795,6 +4801,7 @@ class ChatService {
 
           // 提取文件扩展名
           const fileExt = this.extractXmlValue(content, 'fileext')
+          const fileMd5 = this.extractXmlValue(content, 'md5') || this.extractXmlValue(content, 'filemd5')
           if (fileExt) {
             result.fileExt = fileExt
           } else if (result.fileName) {
@@ -4804,6 +4811,9 @@ class ChatService {
               result.fileExt = match[1]
             }
           }
+          if (fileMd5) {
+            result.fileMd5 = fileMd5.toLowerCase()
+          }
           break
         }
 

electron/services/exportService.ts

@@ -98,6 +98,8 @@ export interface ExportOptions {
   exportVoices?: boolean
   exportVideos?: boolean
   exportEmojis?: boolean
+  exportFiles?: boolean
+  maxFileSizeMb?: number
   exportVoiceAsText?: boolean
   excelCompactColumns?: boolean
   txtColumns?: string[]
@@ -121,7 +123,7 @@ const TXT_COLUMN_DEFINITIONS: Array<{ id: string; label: string }> = [
 
 interface MediaExportItem {
   relativePath: string
-  kind: 'image' | 'voice' | 'emoji' | 'video'
+  kind: 'image' | 'voice' | 'emoji' | 'video' | 'file'
   posterDataUrl?: string
 }
 
@@ -136,6 +138,11 @@ interface ExportDisplayProfile {
 
 type MessageCollectMode = 'full' | 'text-fast' | 'media-fast'
 type MediaContentType = 'voice' | 'image' | 'video' | 'emoji'
+interface FileExportCandidate {
+  sourcePath: string
+  matchedBy: 'md5' | 'name'
+  yearMonth?: string
+}
 
 export interface ExportProgress {
   current: number
@@ -842,7 +849,7 @@ class ExportService {
 
   private isMediaExportEnabled(options: ExportOptions): boolean {
     return options.exportMedia === true &&
-      Boolean(options.exportImages || options.exportVoices || options.exportVideos || options.exportEmojis)
+      Boolean(options.exportImages || options.exportVoices || options.exportVideos || options.exportEmojis || options.exportFiles)
   }
 
   private isUnboundedDateRange(dateRange?: { start: number; end: number } | null): boolean {
@@ -880,7 +887,7 @@ class ExportService {
     if (options.exportImages) selected.add(3)
     if (options.exportVoices) selected.add(34)
     if (options.exportVideos) selected.add(43)
-    if (options.exportEmojis) selected.add(47)
+    if (options.exportFiles) selected.add(49)
     return selected
   }
 
@@ -3416,6 +3423,8 @@ class ExportService {
       exportVoices?: boolean
       exportVideos?: boolean
       exportEmojis?: boolean
+      exportFiles?: boolean
+      maxFileSizeMb?: number
       exportVoiceAsText?: boolean
       includeVideoPoster?: boolean
       includeVoiceWithTranscript?: boolean
@@ -3469,6 +3478,16 @@ class ExportService {
       )
     }
 
+    if ((localType === 49 || localType === 8589934592049) && options.exportFiles && String(msg?.xmlType || '') === '6') {
+      return this.exportFileAttachment(
+        msg,
+        mediaRootDir,
+        mediaRelativePrefix,
+        options.maxFileSizeMb,
+        options.dirCache
+      )
+    }
+
     return null
   }
 
@@ -3939,6 +3958,165 @@ class ExportService {
     return tagMatch?.[1]?.toLowerCase()
   }
 
+  private resolveFileAttachmentRoots(): string[] {
+    const dbPath = String(this.configService.get('dbPath') || '').trim()
+    const rawWxid = String(this.configService.get('myWxid') || '').trim()
+    const cleanedWxid = this.cleanAccountDirName(rawWxid)
+    if (!dbPath) return []
+
+    const normalized = dbPath.replace(/[\\/]+$/, '')
+    const roots = new Set<string>()
+    const tryAddRoot = (candidate: string) => {
+      const fileRoot = path.join(candidate, 'msg', 'file')
+      if (fs.existsSync(fileRoot)) {
+        roots.add(fileRoot)
+      }
+    }
+
+    tryAddRoot(normalized)
+    if (rawWxid) tryAddRoot(path.join(normalized, rawWxid))
+    if (cleanedWxid && cleanedWxid !== rawWxid) tryAddRoot(path.join(normalized, cleanedWxid))
+
+    const dbStoragePath =
+      this.resolveDbStoragePathForExport(normalized, cleanedWxid) ||
+      this.resolveDbStoragePathForExport(normalized, rawWxid)
+    if (dbStoragePath) {
+      tryAddRoot(path.dirname(dbStoragePath))
+    }
+
+    return Array.from(roots)
+  }
+
+  private buildPreferredFileYearMonths(createTime?: unknown): string[] {
+    const raw = Number(createTime)
+    if (!Number.isFinite(raw) || raw <= 0) return []
+    const ts = raw > 1e12 ? raw : raw * 1000
+    const date = new Date(ts)
+    if (Number.isNaN(date.getTime())) return []
+    const y = date.getFullYear()
+    const m = String(date.getMonth() + 1).padStart(2, '0')
+    return [`${y}-${m}`]
+  }
+
+  private async verifyFileHash(sourcePath: string, expectedMd5?: string): Promise<boolean> {
+    const normalizedExpected = String(expectedMd5 || '').trim().toLowerCase()
+    if (!normalizedExpected) return true
+    if (!/^[a-f0-9]{32}$/i.test(normalizedExpected)) return true
+    try {
+      const hash = crypto.createHash('md5')
+      await new Promise<void>((resolve, reject) => {
+        const stream = fs.createReadStream(sourcePath)
+        stream.on('data', chunk => hash.update(chunk))
+        stream.on('end', () => resolve())
+        stream.on('error', reject)
+      })
+      return hash.digest('hex').toLowerCase() === normalizedExpected
+    } catch {
+      return false
+    }
+  }
+
+  private async resolveFileAttachmentCandidates(msg: any): Promise<FileExportCandidate[]> {
+    const fileName = String(msg?.fileName || '').trim()
+    if (!fileName) return []
+
+    const roots = this.resolveFileAttachmentRoots()
+    if (roots.length === 0) return []
+
+    const normalizedMd5 = String(msg?.fileMd5 || '').trim().toLowerCase()
+    const preferredMonths = this.buildPreferredFileYearMonths(msg?.createTime)
+    const candidates: FileExportCandidate[] = []
+    const seen = new Set<string>()
+
+    for (const root of roots) {
+      let monthDirs: string[] = []
+      try {
+        monthDirs = fs.readdirSync(root)
+          .filter(entry => /^\d{4}-\d{2}$/.test(entry) && fs.existsSync(path.join(root, entry)))
+          .sort()
+      } catch {
+        continue
+      }
+
+      const orderedMonths = Array.from(new Set([
+        ...preferredMonths,
+        ...monthDirs.slice().reverse()
+      ]))
+
+      for (const month of orderedMonths) {
+        const sourcePath = path.join(root, month, fileName)
+        if (!fs.existsSync(sourcePath)) continue
+        const resolvedPath = path.resolve(sourcePath)
+        if (seen.has(resolvedPath)) continue
+        seen.add(resolvedPath)
+
+        if (normalizedMd5) {
+          const ok = await this.verifyFileHash(resolvedPath, normalizedMd5)
+          if (ok) {
+            candidates.unshift({ sourcePath: resolvedPath, matchedBy: 'md5', yearMonth: month })
+            continue
+          }
+        }
+
+        candidates.push({ sourcePath: resolvedPath, matchedBy: 'name', yearMonth: month })
+      }
+    }
+
+    return candidates
+  }
+
+  private async exportFileAttachment(
+    msg: any,
+    mediaRootDir: string,
+    mediaRelativePrefix: string,
+    maxFileSizeMb?: number,
+    dirCache?: Set<string>
+  ): Promise<MediaExportItem | null> {
+    try {
+      const fileNameRaw = String(msg?.fileName || '').trim()
+      if (!fileNameRaw) return null
+
+      const filesDir = path.join(mediaRootDir, mediaRelativePrefix, 'files')
+      if (!dirCache?.has(filesDir)) {
+        await fs.promises.mkdir(filesDir, { recursive: true })
+        dirCache?.add(filesDir)
+      }
+
+      const candidates = await this.resolveFileAttachmentCandidates(msg)
+      if (candidates.length === 0) return null
+
+      const maxBytes = Number.isFinite(maxFileSizeMb)
+        ? Math.max(0, Math.floor(Number(maxFileSizeMb) * 1024 * 1024))
+        : 0
+
+      const selected = candidates[0]
+      const stat = await fs.promises.stat(selected.sourcePath)
+      if (!stat.isFile()) return null
+      if (maxBytes > 0 && stat.size > maxBytes) return null
+
+      const normalizedMd5 = String(msg?.fileMd5 || '').trim().toLowerCase()
+      if (normalizedMd5 && selected.matchedBy !== 'md5') {
+        const verified = await this.verifyFileHash(selected.sourcePath, normalizedMd5)
+        if (!verified) return null
+      }
+
+      const safeBaseName = path.basename(fileNameRaw).replace(/[\\/:*?"<>|]/g, '_') || 'file'
+      const messageId = String(msg?.localId || Date.now())
+      const destFileName = `${messageId}_${safeBaseName}`
+      const destPath = path.join(filesDir, destFileName)
+      const copied = await this.copyFileOptimized(selected.sourcePath, destPath)
+      if (!copied.success) return null
+
+      this.noteMediaTelemetry({ doneFiles: 1, bytesWritten: stat.size })
+      return {
+        relativePath: path.posix.join(mediaRelativePrefix, 'files', destFileName),
+        kind: 'file'
+      }
+    } catch {
+      return null
+    }
+  }
+
   private extractLocationMeta(content: string, localType: number): {
     locationLat?: number
     locationLng?: number
@@ -3995,7 +4173,7 @@ class ExportService {
     mediaRelativePrefix: string
   } {
     const exportMediaEnabled = options.exportMedia === true &&
-      Boolean(options.exportImages || options.exportVoices || options.exportVideos || options.exportEmojis)
+      Boolean(options.exportImages || options.exportVoices || options.exportVideos || options.exportEmojis || options.exportFiles)
     const outputDir = path.dirname(outputPath)
     const rawWriteLayout = this.configService.get('exportWriteLayout')
     const writeLayout = rawWriteLayout === 'A' || rawWriteLayout === 'B' || rawWriteLayout === 'C'
@@ -4932,7 +5110,8 @@ class ExportService {
           return (t === 3 && options.exportImages) ||   // 图片
             (t === 47 && options.exportEmojis) ||  // 表情
             (t === 43 && options.exportVideos) ||  // 视频
-            (t === 34 && options.exportVoices)  // 语音文件
+            (t === 34 && options.exportVoices) ||  // 语音文件
+            ((t === 49 || t === 8589934592049) && options.exportFiles && String(msg?.xmlType || '') === '6')
         })
         : []
 
@@ -4973,6 +5152,8 @@ class ExportService {
               exportVoices: options.exportVoices,
               exportVideos: options.exportVideos,
               exportEmojis: options.exportEmojis,
+              exportFiles: options.exportFiles,
+              maxFileSizeMb: options.maxFileSizeMb,
               exportVoiceAsText: options.exportVoiceAsText,
               includeVideoPoster: options.format === 'html',
               imageDeepSearchOnMiss: options.imageDeepSearchOnMiss,
@@ -5441,7 +5622,8 @@ class ExportService {
           return (t === 3 && options.exportImages) ||
             (t === 47 && options.exportEmojis) ||
             (t === 43 && options.exportVideos) ||
-            (t === 34 && options.exportVoices)
+            (t === 34 && options.exportVoices) ||
+            ((t === 49 || t === 8589934592049) && options.exportFiles && String(msg?.xmlType || '') === '6')
         })
         : []
 
@@ -5481,6 +5663,8 @@ class ExportService {
               exportVoices: options.exportVoices,
               exportVideos: options.exportVideos,
               exportEmojis: options.exportEmojis,
+              exportFiles: options.exportFiles,
+              maxFileSizeMb: options.maxFileSizeMb,
               exportVoiceAsText: options.exportVoiceAsText,
               includeVideoPoster: options.format === 'html',
               imageDeepSearchOnMiss: options.imageDeepSearchOnMiss,
@@ -6301,7 +6485,8 @@ class ExportService {
           return (t === 3 && options.exportImages) ||
             (t === 47 && options.exportEmojis) ||
             (t === 43 && options.exportVideos) ||
-            (t === 34 && options.exportVoices)
+            (t === 34 && options.exportVoices) ||
+            ((t === 49 || t === 8589934592049) && options.exportFiles && String(msg?.xmlType || '') === '6')
         })
         : []
 
@@ -6341,6 +6526,8 @@ class ExportService {
               exportVoices: options.exportVoices,
               exportVideos: options.exportVideos,
               exportEmojis: options.exportEmojis,
+              exportFiles: options.exportFiles,
+              maxFileSizeMb: options.maxFileSizeMb,
               exportVoiceAsText: options.exportVoiceAsText,
               includeVideoPoster: options.format === 'html',
               imageDeepSearchOnMiss: options.imageDeepSearchOnMiss,
@@ -7014,7 +7201,8 @@ class ExportService {
           return (t === 3 && options.exportImages) ||
             (t === 47 && options.exportEmojis) ||
             (t === 43 && options.exportVideos) ||
-            (t === 34 && options.exportVoices)
+            (t === 34 && options.exportVoices) ||
+            ((t === 49 || t === 8589934592049) && options.exportFiles && String(msg?.xmlType || '') === '6')
         })
         : []
 
@@ -7054,6 +7242,8 @@ class ExportService {
               exportVoices: options.exportVoices,
               exportVideos: options.exportVideos,
               exportEmojis: options.exportEmojis,
+              exportFiles: options.exportFiles,
+              maxFileSizeMb: options.maxFileSizeMb,
               exportVoiceAsText: options.exportVoiceAsText,
               includeVideoPoster: options.format === 'html',
               imageDeepSearchOnMiss: options.imageDeepSearchOnMiss,
@@ -7391,7 +7581,8 @@ class ExportService {
           return (t === 3 && options.exportImages) ||
             (t === 47 && options.exportEmojis) ||
             (t === 43 && options.exportVideos) ||
-            (t === 34 && options.exportVoices)
+            (t === 34 && options.exportVoices) ||
+            ((t === 49 || t === 8589934592049) && options.exportFiles && String(msg?.xmlType || '') === '6')
         })
         : []
 
@@ -7431,6 +7622,8 @@ class ExportService {
               exportVoices: options.exportVoices,
               exportVideos: options.exportVideos,
               exportEmojis: options.exportEmojis,
+              exportFiles: options.exportFiles,
+              maxFileSizeMb: options.maxFileSizeMb,
               exportVoiceAsText: options.exportVoiceAsText,
               includeVideoPoster: options.format === 'html',
               imageDeepSearchOnMiss: options.imageDeepSearchOnMiss,
@@ -7851,6 +8044,8 @@ class ExportService {
               exportImages: options.exportImages,
               exportVoices: options.exportVoices,
               exportEmojis: options.exportEmojis,
+              exportFiles: options.exportFiles,
+              maxFileSizeMb: options.maxFileSizeMb,
               exportVoiceAsText: options.exportVoiceAsText,
               includeVideoPoster: options.format === 'html',
               includeVoiceWithTranscript: true,

src/App.tsx

@@ -591,9 +591,13 @@ function App() {
               <div className="agreement-notice">
                 <strong>这是免费软件，如果你是付费购买的话请骂死那个骗子。</strong>
                 <span className="agreement-notice-link">
-                  我们唯一的官方网站：
+                  官方网站：
+                  <a href="https://weflow.top" target="_blank" rel="noreferrer">
+                    https://weflow.top
+                  </a>
+                  &nbsp;·&nbsp;
                   <a href="https://github.com/hicccc77/WeFlow" target="_blank" rel="noreferrer">
-                    https://github.com/hicccc77/WeFlow
+                    GitHub 仓库
                   </a>
                 </span>
               </div>
@@ -608,7 +612,7 @@ function App() {
                 <p>因使用本软件产生的任何直接或间接损失，开发者不承担任何责任。请确保你的使用行为符合当地法律法规。</p>
 
                 <h4>4. 隐私保护</h4>
-                <p>本软件不收集任何用户数据。软件更新检测仅获取版本信息，不涉及任何个人隐私。</p>
+                <p>本软件不收集任何用户隐私数据。软件更新检测仅获取版本信息，不涉及任何个人隐私。</p>
               </div>
             </div>
             <div className="agreement-footer">
@@ -666,30 +670,30 @@ function App() {
       )}
 
       {showWaylandWarning && (
-          <div className="agreement-overlay">
+        <div className="agreement-overlay">
-            <div className="agreement-modal">
+          <div className="agreement-modal">
-              <div className="agreement-header">
+            <div className="agreement-header">
-                <Shield size={32} />
+              <Shield size={32} />
-                <h2>环境兼容性提示 (Wayland)</h2>
+              <h2>环境兼容性提示 (Wayland)</h2>
+            </div>
+            <div className="agreement-content">
+              <div className="agreement-text">
+                <p>检测到您当前正在使用 <strong>Wayland</strong> 显示服务器。</p>
+                <p>在 Wayland 环境下，出于系统级的安全与设计机制，<strong>应用程序无法直接控制新弹出窗口的位置</strong>。</p>
+                <p>这可能导致某些独立窗口（如消息通知、图片查看器等）出现位置随机、或不受控制的情况。这是底层机制导致的，对此我们无能为力。</p>
+                <br />
+                <p>如果您觉得窗口位置异常严重影响了使用体验，建议尝试：</p>
+                <p>1. 在系统登录界面，将会话切换回 <strong>X11 (Xorg)</strong> 模式。</p>
+                <p>2. 修改您的桌面管理器 (WM/DE) 配置，强制指定该应用程序的窗口规则。</p>
               </div>
-              <div className="agreement-content">
+            </div>
-                <div className="agreement-text">
+            <div className="agreement-footer">
-                  <p>检测到您当前正在使用 <strong>Wayland</strong> 显示服务器。</p>
+              <div className="agreement-actions">
-                  <p>在 Wayland 环境下，出于系统级的安全与设计机制，<strong>应用程序无法直接控制新弹出窗口的位置</strong>。</p>
+                <button className="btn btn-primary" onClick={handleDismissWaylandWarning}>我知道了，不再提示</button>
-                  <p>这可能导致某些独立窗口（如消息通知、图片查看器等）出现位置随机、或不受控制的情况。这是底层机制导致的，对此我们无能为力。</p>
-                  <br />
-                  <p>如果您觉得窗口位置异常严重影响了使用体验，建议尝试：</p>
-                  <p>1. 在系统登录界面，将会话切换回 <strong>X11 (Xorg)</strong> 模式。</p>
-                  <p>2. 修改您的桌面管理器 (WM/DE) 配置，强制指定该应用程序的窗口规则。</p>
-                </div>
-              </div>
-              <div className="agreement-footer">
-                <div className="agreement-actions">
-                  <button className="btn btn-primary" onClick={handleDismissWaylandWarning}>我知道了，不再提示</button>
-                </div>
               </div>
             </div>
           </div>
+        </div>
       )}
 
       {/* 更新提示对话框 */}

src/components/Export/ExportDefaultsSettingsForm.tsx

@@ -66,7 +66,8 @@ export function ExportDefaultsSettingsForm({
     images: true,
     videos: true,
     voices: true,
-    emojis: true
+    emojis: true,
+    files: true
   })
   const [exportDefaultVoiceAsText, setExportDefaultVoiceAsText] = useState(false)
   const [exportDefaultExcelCompactColumns, setExportDefaultExcelCompactColumns] = useState(true)
@@ -94,7 +95,8 @@ export function ExportDefaultsSettingsForm({
         images: true,
         videos: true,
         voices: true,
-        emojis: true
+        emojis: true,
+        files: true
       })
       setExportDefaultVoiceAsText(savedVoiceAsText ?? false)
       setExportDefaultExcelCompactColumns(savedExcelCompactColumns ?? true)
@@ -292,7 +294,7 @@ export function ExportDefaultsSettingsForm({
       <div className="form-group media-setting-group">
         <div className="form-copy">
           <label>默认导出媒体内容</label>
-          <span className="form-hint">控制图片、视频、语音、表情包的默认导出开关</span>
+          <span className="form-hint">控制图片、视频、语音、表情包、文件的默认导出开关</span>
         </div>
         <div className="form-control">
           <div className="media-default-grid">
@@ -352,6 +354,20 @@ export function ExportDefaultsSettingsForm({
               />
               表情包
             </label>
+            <label>
+              <input
+                type="checkbox"
+                checked={exportDefaultMedia.files}
+                onChange={async (e) => {
+                  const next = { ...exportDefaultMedia, files: e.target.checked }
+                  setExportDefaultMedia(next)
+                  await configService.setExportDefaultMedia(next)
+                  onDefaultsChanged?.({ media: next })
+                  notify(`已${e.target.checked ? '开启' : '关闭'}默认导出文件`, true)
+                }}
+              />
+              文件
+            </label>
           </div>
         </div>
       </div>

src/pages/ExportPage.tsx

@@ -67,7 +67,7 @@ import './ExportPage.scss'
 type ConversationTab = 'private' | 'group' | 'official' | 'former_friend'
 type TaskStatus = 'queued' | 'running' | 'success' | 'error'
 type TaskScope = 'single' | 'multi' | 'content' | 'sns'
-type ContentType = 'text' | 'voice' | 'image' | 'video' | 'emoji'
+type ContentType = 'text' | 'voice' | 'image' | 'video' | 'emoji' | 'file'
 type ContentCardType = ContentType | 'sns'
 type SnsRankMode = 'likes' | 'comments'
 
@@ -88,6 +88,8 @@ interface ExportOptions {
   exportVoices: boolean
   exportVideos: boolean
   exportEmojis: boolean
+  exportFiles: boolean
+  maxFileSizeMb: number
   exportVoiceAsText: boolean
   excelCompactColumns: boolean
   txtColumns: string[]
@@ -195,7 +197,8 @@ const contentTypeLabels: Record<ContentType, string> = {
   voice: '语音',
   image: '图片',
   video: '视频',
-  emoji: '表情包'
+  emoji: '表情包',
+  file: '文件'
 }
 
 const backgroundTaskSourceLabels: Record<string, string> = {
@@ -1598,7 +1601,8 @@ function ExportPage() {
     images: true,
     videos: true,
     voices: true,
-    emojis: true
+    emojis: true,
+    files: true
   })
   const [exportDefaultVoiceAsText, setExportDefaultVoiceAsText] = useState(false)
   const [exportDefaultExcelCompactColumns, setExportDefaultExcelCompactColumns] = useState(true)
@@ -1617,7 +1621,9 @@ function ExportPage() {
     exportImages: true,
     exportVoices: true,
     exportVideos: true,
-        exportEmojis: true,
+    exportEmojis: true,
+    exportFiles: true,
+    maxFileSizeMb: 200,
     exportVoiceAsText: false,
     excelCompactColumns: true,
     txtColumns: defaultTxtColumns,
@@ -2281,7 +2287,8 @@ function ExportPage() {
         images: true,
         videos: true,
         voices: true,
-        emojis: true
+        emojis: true,
+        files: true
       })
       setExportDefaultVoiceAsText(savedVoiceAsText ?? false)
       setExportDefaultExcelCompactColumns(savedExcelCompactColumns ?? true)
@@ -2310,12 +2317,14 @@ function ExportPage() {
           (savedMedia?.images ?? prev.exportImages) ||
           (savedMedia?.voices ?? prev.exportVoices) ||
           (savedMedia?.videos ?? prev.exportVideos) ||
-          (savedMedia?.emojis ?? prev.exportEmojis)
+          (savedMedia?.emojis ?? prev.exportEmojis) ||
+          (savedMedia?.files ?? prev.exportFiles)
         ),
         exportImages: savedMedia?.images ?? prev.exportImages,
         exportVoices: savedMedia?.voices ?? prev.exportVoices,
         exportVideos: savedMedia?.videos ?? prev.exportVideos,
         exportEmojis: savedMedia?.emojis ?? prev.exportEmojis,
+        exportFiles: savedMedia?.files ?? prev.exportFiles,
         exportVoiceAsText: savedVoiceAsText ?? prev.exportVoiceAsText,
         excelCompactColumns: savedExcelCompactColumns ?? prev.excelCompactColumns,
         txtColumns,
@@ -4088,12 +4097,15 @@ function ExportPage() {
           exportDefaultMedia.images ||
           exportDefaultMedia.voices ||
           exportDefaultMedia.videos ||
-          exportDefaultMedia.emojis
+          exportDefaultMedia.emojis ||
+          exportDefaultMedia.files
         ),
         exportImages: exportDefaultMedia.images,
         exportVoices: exportDefaultMedia.voices,
         exportVideos: exportDefaultMedia.videos,
         exportEmojis: exportDefaultMedia.emojis,
+        exportFiles: exportDefaultMedia.files,
+        maxFileSizeMb: prev.maxFileSizeMb,
         exportVoiceAsText: exportDefaultVoiceAsText,
         excelCompactColumns: exportDefaultExcelCompactColumns,
         exportConcurrency: exportDefaultConcurrency,
@@ -4111,12 +4123,14 @@ function ExportPage() {
           next.exportVoices = false
           next.exportVideos = false
           next.exportEmojis = false
+          next.exportFiles = false
         } else {
           next.exportMedia = true
           next.exportImages = payload.contentType === 'image'
           next.exportVoices = payload.contentType === 'voice'
           next.exportVideos = payload.contentType === 'video'
           next.exportEmojis = payload.contentType === 'emoji'
+          next.exportFiles = payload.contentType === 'file'
           next.exportVoiceAsText = false
         }
       }
@@ -4335,7 +4349,13 @@ function ExportPage() {
 
   const buildExportOptions = (scope: TaskScope, contentType?: ContentType): ElectronExportOptions => {
     const sessionLayout: SessionLayout = writeLayout === 'C' ? 'per-session' : 'shared'
-    const exportMediaEnabled = Boolean(options.exportImages || options.exportVoices || options.exportVideos || options.exportEmojis)
+    const exportMediaEnabled = Boolean(
+      options.exportImages ||
+      options.exportVoices ||
+      options.exportVideos ||
+      options.exportEmojis ||
+      options.exportFiles
+    )
 
     const base: ElectronExportOptions = {
       format: options.format,
@@ -4345,6 +4365,8 @@ function ExportPage() {
       exportVoices: options.exportVoices,
       exportVideos: options.exportVideos,
       exportEmojis: options.exportEmojis,
+      exportFiles: options.exportFiles,
+      maxFileSizeMb: options.maxFileSizeMb,
       exportVoiceAsText: options.exportVoiceAsText,
       excelCompactColumns: options.excelCompactColumns,
       txtColumns: options.txtColumns,
@@ -4375,7 +4397,8 @@ function ExportPage() {
           exportImages: false,
           exportVoices: false,
           exportVideos: false,
-          exportEmojis: false
+          exportEmojis: false,
+          exportFiles: false
         }
       }
 
@@ -4387,6 +4410,7 @@ function ExportPage() {
         exportVoices: contentType === 'voice',
         exportVideos: contentType === 'video',
         exportEmojis: contentType === 'emoji',
+        exportFiles: contentType === 'file',
         exportVoiceAsText: false
       }
     }
@@ -4452,6 +4476,7 @@ function ExportPage() {
       if (opts.exportVoices) labels.push('语音')
       if (opts.exportVideos) labels.push('视频')
       if (opts.exportEmojis) labels.push('表情包')
+      if (opts.exportFiles) labels.push('文件')
     }
     return Array.from(new Set(labels)).join('、')
   }, [])
@@ -4507,6 +4532,7 @@ function ExportPage() {
       if (opts.exportImages) types.push('image')
       if (opts.exportVideos) types.push('video')
       if (opts.exportEmojis) types.push('emoji')
+      if (opts.exportFiles) types.push('file')
     }
     return types
   }
@@ -4937,7 +4963,8 @@ function ExportPage() {
       images: options.exportImages,
       voices: options.exportVoices,
       videos: options.exportVideos,
-      emojis: options.exportEmojis
+      emojis: options.exportEmojis,
+      files: options.exportFiles
     })
     await configService.setExportDefaultVoiceAsText(options.exportVoiceAsText)
     await configService.setExportDefaultExcelCompactColumns(options.excelCompactColumns)
@@ -6955,11 +6982,12 @@ function ExportPage() {
       setExportDefaultMedia(mediaPatch)
       setOptions(prev => ({
         ...prev,
-        exportMedia: Boolean(mediaPatch.images || mediaPatch.voices || mediaPatch.videos || mediaPatch.emojis),
+        exportMedia: Boolean(mediaPatch.images || mediaPatch.voices || mediaPatch.videos || mediaPatch.emojis || mediaPatch.files),
         exportImages: mediaPatch.images,
         exportVoices: mediaPatch.voices,
         exportVideos: mediaPatch.videos,
-        exportEmojis: mediaPatch.emojis
+        exportEmojis: mediaPatch.emojis,
+        exportFiles: mediaPatch.files
       }))
     }
     if (typeof patch.voiceAsText === 'boolean') {
@@ -8159,15 +8187,36 @@ function ExportPage() {
                         <label><input type="checkbox" checked={options.exportVoices} onChange={event => setOptions(prev => ({ ...prev, exportVoices: event.target.checked }))} /> 语音</label>
                         <label><input type="checkbox" checked={options.exportVideos} onChange={event => setOptions(prev => ({ ...prev, exportVideos: event.target.checked }))} /> 视频</label>
                         <label><input type="checkbox" checked={options.exportEmojis} onChange={event => setOptions(prev => ({ ...prev, exportEmojis: event.target.checked }))} /> 表情包</label>
+                        <label><input type="checkbox" checked={options.exportFiles} onChange={event => setOptions(prev => ({ ...prev, exportFiles: event.target.checked }))} /> 文件</label>
                       </>
                     )}
                   </div>
-                  {exportDialog.scope === 'sns' && (
+                  {exportDialog.scope !== 'sns' && options.exportFiles && (
-                    <div className="format-note">全不勾选时仅导出文本信息，不导出媒体文件。</div>
+                    <div className="format-note">文件导出会优先使用消息里的 MD5 做校验；若设置了大小上限，则仅导出不超过该值的文件。</div>
                   )}
                 </div>
               )}
 
+              {shouldShowMediaSection && exportDialog.scope !== 'sns' && options.exportFiles && (
+                <div className="dialog-section">
+                  <h4>文件大小上限</h4>
+                  <div className="format-note">仅导出不超过该大小的文件，0 表示不限制。</div>
+                  <div className="dialog-input-row">
+                    <input
+                      type="number"
+                      min={0}
+                      step={10}
+                      value={options.maxFileSizeMb}
+                      onChange={event => {
+                        const raw = Number(event.target.value)
+                        setOptions(prev => ({ ...prev, maxFileSizeMb: Number.isFinite(raw) ? Math.max(0, Math.floor(raw)) : 0 }))
+                      }}
+                    />
+                    <span>MB</span>
+                  </div>
+                </div>
+              )}
+
               {shouldShowImageDeepSearchToggle && (
                 <div className="dialog-section">
                   <div className="dialog-switch-row">

src/pages/SettingsPage.tsx

@@ -2508,7 +2508,9 @@ function SettingsPage({ onClose }: SettingsPageProps = {}) {
       <div className="about-footer">
         <p className="about-desc">微信聊天记录分析工具</p>
         <div className="about-links">
-          <a href="#" onClick={(e) => { e.preventDefault(); window.electronAPI.shell.openExternal('https://github.com/hicccc77/WeFlow') }}>官网</a>
+          <a href="#" onClick={(e) => { e.preventDefault(); window.electronAPI.shell.openExternal('https://weflow.top') }}>官网</a>
+          <span>·</span>
+          <a href="#" onClick={(e) => { e.preventDefault(); window.electronAPI.shell.openExternal('https://github.com/hicccc77/WeFlow') }}>GitHub 仓库</a>
           <span>·</span>
           <a href="#" onClick={(e) => { e.preventDefault(); window.electronAPI.shell.openExternal('https://chatlab.fun') }}>ChatLab</a>
           <span>·</span>

src/services/config.ts

@@ -94,6 +94,7 @@ export interface ExportDefaultMediaConfig {
   videos: boolean
   voices: boolean
   emojis: boolean
+  files: boolean
 }
 
 export type WindowCloseBehavior = 'ask' | 'tray' | 'quit'
@@ -104,7 +105,8 @@ const DEFAULT_EXPORT_MEDIA_CONFIG: ExportDefaultMediaConfig = {
   images: true,
   videos: true,
   voices: true,
-  emojis: true
+  emojis: true,
+  files: true
 }
 
 // 获取解密密钥
@@ -423,7 +425,8 @@ export async function getExportDefaultMedia(): Promise<ExportDefaultMediaConfig
       images: value,
       videos: value,
       voices: value,
-      emojis: value
+      emojis: value,
+      files: value
     }
   }
   if (value && typeof value === 'object') {
@@ -432,7 +435,8 @@ export async function getExportDefaultMedia(): Promise<ExportDefaultMediaConfig
       images: typeof raw.images === 'boolean' ? raw.images : DEFAULT_EXPORT_MEDIA_CONFIG.images,
       videos: typeof raw.videos === 'boolean' ? raw.videos : DEFAULT_EXPORT_MEDIA_CONFIG.videos,
       voices: typeof raw.voices === 'boolean' ? raw.voices : DEFAULT_EXPORT_MEDIA_CONFIG.voices,
-      emojis: typeof raw.emojis === 'boolean' ? raw.emojis : DEFAULT_EXPORT_MEDIA_CONFIG.emojis
+      emojis: typeof raw.emojis === 'boolean' ? raw.emojis : DEFAULT_EXPORT_MEDIA_CONFIG.emojis,
+      files: typeof raw.files === 'boolean' ? raw.files : DEFAULT_EXPORT_MEDIA_CONFIG.files
     }
   }
   return null
@@ -444,7 +448,8 @@ export async function setExportDefaultMedia(media: ExportDefaultMediaConfig): Pr
     images: media.images,
     videos: media.videos,
     voices: media.voices,
-    emojis: media.emojis
+    emojis: media.emojis,
+    files: media.files
   })
 }
 

src/types/electron.d.ts

@@ -881,7 +881,7 @@ export interface ElectronAPI {
 
 export interface ExportOptions {
   format: 'chatlab' | 'chatlab-jsonl' | 'json' | 'arkme-json' | 'html' | 'txt' | 'excel' | 'weclone' | 'sql'
-  contentType?: 'text' | 'voice' | 'image' | 'video' | 'emoji'
+  contentType?: 'text' | 'voice' | 'image' | 'video' | 'emoji' | 'file'
   dateRange?: { start: number; end: number } | null
   senderUsername?: string
   fileNameSuffix?: string
@@ -891,6 +891,8 @@ export interface ExportOptions {
   exportVoices?: boolean
   exportVideos?: boolean
   exportEmojis?: boolean
+  exportFiles?: boolean
+  maxFileSizeMb?: number
   exportVoiceAsText?: boolean
   excelCompactColumns?: boolean
   txtColumns?: string[]

src/types/models.ts

@@ -75,6 +75,7 @@ export interface Message {
   fileName?: string         // 文件名
   fileSize?: number         // 文件大小
   fileExt?: string          // 文件扩展名
+  fileMd5?: string          // 文件 MD5
   xmlType?: string          // XML 中的 type 字段
   appMsgKind?: string       // 归一化 appmsg 类型
   appMsgDesc?: string